Yu-Gi-Oh! - Terraforming (SDGU-EN029) - Structure Deck 21: Gates of the Underworld - 1st Edition - Common A single individual card from the Yu-Gi-Oh! trading and collectible card game (TCG/CCG). This is of Common rarity. From the Structure Deck 21: Gates of the Underworld set. You will receive the 1st Edition version of this card.